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• W4387096140 abstract "Based on data supporting a volume-outcome relationship in elective aortic aneurysm repair, the Society of Vascular Surgery (SVS) guidelines recommend that endovascular aortic repair (EVAR) be localized to centers that perform ≥ 10 operations annually and have a perioperative mortality and conversion-to-open rate of ≤ 2% and that open aortic repair (OAR) be localized to centers that perform ≥ 10 open aortic operations annually and have a perioperative mortality ≤ 5%. However, the number and distribution of centers meeting the SVS criteria remains unclear. This study aimed to estimate the temporal trends and geographic distribution of Centers Meeting the SVS Aortic Guidelines (CMAG) in the USA.The SVS Vascular Quality Initiative (VQI) was queried for all OAR, aortic bypasses, and EVAR 2011-2019. Annual open aortic and EVAR volume, 30-day elective operative mortality for OAR or EVAR, and EVAR conversion-to-open rate for all centers were calculated. The SVS guidelines for OAR and EVAR, individually and combined, were applied to each institution leading to a CMAG designation. The proportion of CMAGs by region (West, Midwest, South, and Northeast) were compared by year using a X2 test. Temporal trends were estimated using a multivariable logistic regression for CMAG, adjusting by region.Overall, 67,865 patients (49,264 EVAR; 11,010 OAR; 7,591 aortic bypasses) at 336 institutions were examined. The proportion of EVAR CMAGs increased nationally by 1.7% annually from 51.6% (n=33/64) in 2011 to 67.1% (n=190/283) in 2019 (β=0.05, 95% CI: 0.01, 0.09, P=0.02). The proportion of EVAR CMAGs across regions ranged from 27.3% to 66.7% in 2011 to 63.9% to 72.9% in 2019. In contrast, the proportion of OAR CMAGs has decreased nationally by 1.8% annually from 32.8% (n=21/64) in 2011 to 16.3% (n=46/283) in 2019 (β=-0.14, 95% CI: -0.19, -0.10, P<0.01). Combined EVAR and OAR CMAGs were even less frequent and decreased by 1.5% annually from 26.6% (n=17/64) in 2011 to 13.1% (n=37/283) in 2019 (β=-0.12, 95% CI: -0.17, -0.07, P<0.01). In 2019, there was no significant difference in regional variation of the proportion of combined EVAR and OAR CMAG (P=0.82).While an increasing proportion of institutions nationally meet the SVS guidelines for EVAR, a smaller proportion meet them for OAR, with a concerning downward trend. These data question whether we can safely offer OAR at most institutions, have important implications about sufficient OAR exposure for trainees, and support regionalization of OAR." @default.
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• W4387096140 date "2023-09-01" @default.
• W4387096140 modified "2023-10-14" @default.
• W4387096140 title "Decreasing Prevalence of Centers Meeting the Society for Vascular Surgery Abdominal Aortic Aneurysm Guidelines in the United States" @default.
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• W4387096140 doi "https://doi.org/10.1016/j.jvs.2023.09.028" @default.
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